Curtain-roller-operating mechanism



, Aug. 12, 193o.

I. A. R. BELLEROSE i CURTAIN ROLLER OPERATING MECHANISM Filed March 28, 1929 m m ,Ww M

' *il* thereof. 'lhecurtg lwas frequently 'rijecrssrrylmg jiggleorf vibrate 1 vidfan-imprvied e e prting Y mech'ismawherein the abve-andfbther digs: '25 advantages "and" objeetis indelg't "tti struc'- tures *as n'w'geiieiflly are eliminated.

ffsi

ofthe curtainv o1" making". repeetedffadpll'stments releasingthe operating 40 t Y n Wind a curtainfthereuponfa.rotatablelvshaft fwith Which'saidro'ller isfadaptedrtorotate,

Y Y able element" adapted `tohojldV said 'member 7 against-rotation, and` a-`connecti'on "between said roller andymember through y ivhieh -saidy memberfholds saidvv roller 'i a ains't rotation under the Yi-niuence of said" rst mentioned means Whenssaid elementris engagedwlth said member, said connection j-loeirngauto-1` Vrnatio'ally disengaged from said'me'rnberwhen said roller is turned'in a directiontounvvind aia combinaties, a fuela] what ja L Y Vourtain is adapted tobe Wound, a spring nor-V v mally tendingto turnsaid rollerin a direci 'rollen tion to Wi-ndthe.` curtainthereupon,k brake means fffor holding said,` roller against turn Y Y ing movement underthe'influenoe of ,saidk spring and a coniieotion betWeen` said roller 'and brake means andk including a' unit which is normally held *by said spring in )engaged position `with4 said brakePrneans, said unit a brake engaging said drum, and a unitff` i l" 'between' said gear and pinion and inoludlng,

a shaft mounted forfmovementfin arcuate slots struckabout the axis .of said shaft, "said,` fi unit beingdisengaged from said pinionwhenr jsaid'roller is turned in a direction .to unwindt ,the curtain. f A `7. VIn Vcombination, a roller on whichV a Curtain isfadapted tolbewound,' means' norff mally vtending to turn said'frollerin a direc; 4 tionfto" Wind` the curtain thereuporna rotatablevmember, any' Aelement engageable there-Hv ,with for preventingfrotation fthereof, and ay connection between said roller and member and including a pair `of cooperating parts; 'one ofvvhichV is movable into and out fof y engagement'withtheother, saidcooperating partsy being automatically disengaged y.wheny f i sidroller is'turned in adirection i the ourtain.V

M 3; combinatiomaroller onvvhicha cur- 5,v .f i

I 'tainis.adaptedtobe'wound means normally e tending to turn "saidfrollerg-in a-` direction to WindV the eurtain thereupon, yalbrakevdrum,

aV brake' shoe `ladapted to `be,"manlially diseni 'l I i gaged from saidgdrum, andfgeajringbetvveen said brake drumf'and said* roller?andinclud` ing aunit adapted to bek throxvnint'oand out i Y Y Lof mesh, said irstmentioned means normally holding said unitinmesh andlsaid kllfnit being thrown out of me'shlwh'en saidroller is-turned Y. in a direction toflovverthe curtain! yf tion t0 -wind theourtain thereuponea.. Shaft rotatable with Vsaid roller, :abra-ke drlrlnglm,J l

.4; In oombination,"aroller fon'vvhieh a curf" `.tain is adapted vto bewoundymeans normally` tendingto turnsaidfrollerina direction tof,

a rotatablel brakemembena vbrake shoe ,nor-A i brake shoeandy including af i itmo 5. In "combination, aj `,roller on'y vvhiohllaf' curtain 1s adaptedto-be" Wound, means` nor I brake. shoe resiliently held against sadfdrum,

V(il) a control member'for disengaging said shoe from said drum, and gearingbetween said shaft and drum andincluding -a unit mounted forbodily movement yin. anfaro about said 5 shaft'.

v oombinaton,a rolleronvvhichaeuii` A Vtam 1s adapted to Vbe woundyafspringnriz f mally` tending to turn said roller in a vdirection to wind. thecurtain' thereupon, a shaft rotatable yWith said roller and havinga gear,

`a shafthaving 'afbrake drum andajpinion, f

ALBERT 

